BU2385KN
Multimedia ICs
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Clock generator for digital still camera
BU2385KN


BU2385KN is a clock generator IC that can generate multiple frequencies (clocks) from one oscillator. Excellent jitter
characteristic is achieved through the built-in high-performance 3-channel PLL. High-quality sound and image equivalent
to the oscillating module are the result of this feature. Clocks can be easily changed for other applications. The internal
dividing control allows the frequency to be switched outside.


zApplications
Digital still camera
zExternal dimensions (Unit : mm)



zFeatures
1) Multiple frequency clock signals can be generated
by the built-in 3-channel PLL through connecting
crystal oscillator.
2) QFN20V package
3) 3.3V single power supply
4) For crystal 14.318182MHz
•
28.636363MHz
5) No need additional components.
(BU2385KN have PLL loop filter in side).



zAbsolute maximum ratings (Ta=25°C)
Parameter Symbol Limits Unit
VDD
VIN
Tstg
Pd
V
mW
−0.5 to +7.0
−0.3 to VDD+0.3
530
−30 to +125
V
C
∗ In case it is used at Ta=25 C or more, 5.3mW is reduced at every 1 C.
∗ An operation is not guaranteed.
∗ Radiation resistance design is not used.
∗ Power dissipation is measured when BU2385KN is placed in the board.
Applied voltage
Input voltage
Storage temperature range
Power dissipation



zRecommended operating conditions (Ta=25°C)
Parameter Symbol Unit
VDD
VIH
VIL
Topr
CL
V
V
pF
−
−
−
−
−−
0.8VDD VDD
0.2VDD
3.0 3.6
+70
15
0.0
−5
V
Min. Max.Typ.
Supply voltage
Input H voltage range
Input L voltage range
Operation temperature range
Output maximum load
C



QFN20V
4.2 0.1
+
−
4.0 0.1
+
−
0.20 0.05
+
−
+
−
0.20 0.1
+
−
4.2 0.1
+ −
0.2 0.05
+ −
4.0 0.1
+ −
0.6 0.1
+ −
0.8 0.15
+ −
16
20
15
6
10
15 11
12 12
0.05
0.05
0.01
+
0.03
−
0.007
M
0.5
+
−
3
−
0.35 0.25
1.1 0.15
0.6
+0.15
−0.3
0.5
+
0.2−
0.4